1 /*
2 * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 /*
26 * @test id=static
27 * @requires vm.cds.write.archived.java.heap
28 * @library /test/jdk/lib/testlibrary /test/lib
29 * @build StringConcatStress2
30 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar StringConcatStress2App
31 * @run driver StringConcatStress2 STATIC
32 */
33
34 /*
35 * @test id=leyden
36 * @requires vm.cds.write.archived.java.heap
37 * @library /test/jdk/lib/testlibrary /test/lib
38 * @build StringConcatStress2
39 * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar app.jar StringConcatStress2App
40 * @run driver StringConcatStress2 LEYDEN
41 */
42
43 import jdk.test.lib.cds.CDSAppTester;
44 import jdk.test.lib.helpers.ClassFileInstaller;
45 import jdk.test.lib.process.OutputAnalyzer;
46
47 public class StringConcatStress2 {
48 static final String appJar = ClassFileInstaller.getJarPath("app.jar");
49 static final String mainClass = "StringConcatStress2App";
50
51 public static void main(String[] args) throws Exception {
52 Tester t = new Tester();
53 t.run(args);
54 }
55
56 static class Tester extends CDSAppTester {
57 public Tester() {
58 super(mainClass);
59 }
60
61 @Override
62 public String classpath(RunMode runMode) {
63 return appJar;
64 }
65
66 public String[] vmArgs(RunMode runMode) {
67 return new String[] {
68 "-XX:+AOTClassLinking", // by default enables AOTInvokeDynamicLinking
69 };
70 }
71
72 @Override
73 public String[] appCommandLine(RunMode runMode) {
74 return new String[] {
75 mainClass
76 };
77 }
78
79 @Override
80 public void checkExecution(OutputAnalyzer out, RunMode runMode) {
81 if (!runMode.isStaticDump()) {
82 out.shouldContain("Result = 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1END");
83 }
84 }
85 }
86 }
87
88 class StringConcatStress2App {
89 public static void main(String args[]) {
90 System.out.println("Result = " + concat23String() + "END");
91 }
92
93 // Test the handling of java.lang.invoke.StringConcat.highArityThreshold (default value is 20)
94 // in java.lang.invoke.StringConcatFactory. If we have more than this number of concats, a
95 // different form of CallSite is generated by StringConcatFactory that will uses
96 // different kinds of hidden classes than usual.
97 static String concat23String() {
98 return f0 + ","+ f1 + ","+ f2 + ","+ f3 + ","+ f4 + ","+ f5 + ","+ f6 + ","+ f7 + ","+ f8 + ","+ f9 + ","
99 + f10 + ","+ f11 + ","+ f12 + ","+ f13 + ","+ f14 + ","+ f15 + ","+ f16 + ","+ f17 + ","+ f18 + ","+ f19 + ","
100 + f20 + ","+ f21 + ","+ f22;
101 }
102
103 private static String
104 f0="1", f1="1", f2="1", f3="1", f4="1", f5="1", f6="1", f7="1", f8="1", f9="1",
105 f10="1", f11="1", f12="1", f13="1", f14="1", f15="1", f16="1", f17="1", f18="1", f19="1",
106 f20="1", f21="1", f22="1", f23="1", f24="1", f25="1", f26="1", f27="1", f28="1", f29="1",
107 f30="1", f31="1", f32="1", f33="1", f34="1", f35="1", f36="1", f37="1", f38="1", f39="1",
108 f40="1", f41="1", f42="1", f43="1", f44="1", f45="1", f46="1", f47="1", f48="1", f49="1",
109 f50="1", f51="1", f52="1", f53="1", f54="1", f55="1", f56="1", f57="1", f58="1", f59="1",
110 f60="1", f61="1", f62="1", f63="1", f64="1", f65="1", f66="1", f67="1", f68="1", f69="1",
111 f70="1", f71="1", f72="1", f73="1", f74="1", f75="1", f76="1", f77="1", f78="1", f79="1",
112 f80="1", f81="1", f82="1", f83="1", f84="1", f85="1", f86="1", f87="1", f88="1", f89="1",
113 f90="1", f91="1", f92="1", f93="1", f94="1", f95="1", f96="1", f97="1", f98="1", f99="1",
114 f100="1",f101="1",f102="1",f103="1",f104="1",f105="1",f106="1",f107="1",f108="1",f109="1",
115 f110="1",f111="1",f112="1",f113="1",f114="1",f115="1",f116="1",f117="1",f118="1",f119="1",
116 f120="1",f121="1",f122="1";
117
118 }